Loop & RCD Testers

Loop and RCD testers can work in tandem, with an RCD (Residual Current Device) capable of breaking an electrical circuit before it causes harm, whereas a Loop Tester is a quick, convenient and highly specific method of evaluating an electrical circuit for its ability to engage protective devices (circuit breakers, fuses, Ground-fault circuit interrupter).

What are the functions of Loop Tester?

The primary reason for earth loop impedance testing is to verify that if a fault occurs in an electrical installation, sufficient current will flow to operate the fuse or circuit breaker protecting the faulty circuit within a predetermined time. The aim is to make sure that the circuit is disconnected fast enough to prevent overheating and possibly a fire.

What are the functions of a RCD Tester?

With a single-phase circuit, the device monitors the difference in currents between the line and neutral conductors. This life-saving device, designed to prevent you from getting a fatal electric shock if you touch something live, (e.g. bare wire), offers a level of personal protection that ordinary fuses and circuit-breakers cannot provide.

RCD is a generic term applied to a family of products which open automatically in response to a residual current equal to or greater than the RCD’s rated residual operating current.

An RCCB differs from an RCBO in that the RCBO will additionally respond to over current conditions whereas the RCCB will not respond to such conditions. The term SRCD applies to an RCD which is an integral part of a socket outlet or which is fitted in a box immediately next to a socket outlet.

Why choose RS Components for your Loop and RCD Testers?

RS Components have a comprehensive range of Loop and RCD Testers for a multitude of applications, from market-leading brands such as Megger and our very own brand RS PRO. RS Components have on hand technical advisers that can provide you with vital information not only on the product, but on our calibrated service. All of our products are available for next day delivery.


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Description Price Calibrated Loop Impedance Test Type Test Equipment Type Maximum Voltage Measurement RCD Test Type PSC Display Best Loop Test Accuracy RCD Test Current Non-Trip Loop Test Safety Category Display Type Battery Life Battery Type Power Source
RS Stock No. 123-2363
BrandRS PRO
£206.77
Each
Units
RSCAL - Digital RCD Tester - AC - - 10 mA, 20 mA, 30 mA, 100 mA, 300 mA, 500mA - - LCD - - Mains
RS Stock No. 123-2364
BrandRS PRO
£227.27
Each
Units
UKAS - Digital RCD Tester - AC - - 10 mA, 20 mA, 30 mA, 100 mA, 300 mA, 500mA - - LCD - - Mains
RS Stock No. 123-2240
BrandRS PRO
£157.27
Each
Units
- - Digital RCD Tester - AC - - 10 mA, 20 mA, 30 mA, 100 mA, 300 mA, 500mA - - LCD - - Mains
RS Stock No. 123-2239
BrandRS PRO
£130.90
Each
Units
- 3 Wire Earth Loop Impedance Tester - - Yes ±2% - - - LCD - - Mains
RS Stock No. 123-2349
BrandRS PRO
£200.90
Each
Units
UKAS 3 Wire Earth Loop Impedance Tester - - Yes ±2% - - - LCD - - Mains
RS Stock No. 123-2348
BrandRS PRO
£180.40
Each
Units
RSCAL 3 Wire Earth Loop Impedance Tester - - Yes ±2% - - - LCD - - Mains
RS Stock No. 821-2084
Mfr. Part No.FC2000
£110.95
Each
Units
- 2 Wire Combined Loop & RCD Tester 1000V AC Selective - 1% 163mA - - - - - Mains
RS Stock No. 712-5746
Mfr. Part No.RCDT320-EN-BS
BrandMegger
£505.00
Each
Units
- - RCD Tester - DC - - 1000mA - CAT III 300V LCD 2000 Tests AA Battery
RS Stock No. 711-9016
Mfr. Part No.RCDT320
BrandMegger
£575.00
Each
Units
UKAS - RCD Tester - DC - - 1000mA - CAT III 300V LCD 2000 Tests AA Battery
RS Stock No. 711-9019
Mfr. Part No.RCDT320
BrandMegger
£554.50
Each
Units
RSCAL - RCD Tester - DC - - 1000mA - CAT III 300V LCD 2000 Tests AA Battery
RS Stock No. 237-899
Mfr. Part No.LTW315-RS-BS
BrandMegger
£565.00
Each
Units
UKAS 2 Wire, 3 Wire Earth Loop Impedance Tester 440V AC Selective - ±10% 4A Yes CAT IV 300 V, IEC 61010 LCD 2000 Tests AA Battery
RS Stock No. 237-861
Mfr. Part No.LTW315-RS-BS
BrandMegger
£544.50
Each
Units
RSCAL 2 Wire, 3 Wire Earth Loop Impedance Tester 440V AC Selective - ±10% 4A Yes CAT IV 300 V, IEC 61010 LCD 2000 Tests AA Battery
RS Stock No. 198-435
Mfr. Part No.LTW315-EU-BS
BrandMegger
£495.00
Each
Units
- 2 Wire, 3 Wire Earth Loop Impedance Tester 440V AC Selective - ±10% 4A Yes CAT IV 300 V, IEC 61010 LCD 2000 Tests AA Battery
RS Stock No. 711-9013
Mfr. Part No.LRCD220
BrandMegger
£805.00
Each
Units
UKAS 2 Wire Combined Loop & RCD Tester 500V AC Selective, DC Selective Yes ±2% 10 mA, 30 mA, 100 mA, 300 mA, 500 mA, 1000mA Yes CAT III 300 V, IEC 61010 LCD 2000 Tests AA Battery
RS Stock No. 712-5749
Mfr. Part No.LRCD220-EN-BS
BrandMegger
£735.00
Each
Units
- 2 Wire Combined Loop & RCD Tester 500V AC Selective, DC Selective Yes ±2% 10 mA, 30 mA, 100 mA, 300 mA, 500 mA, 1000mA Yes CAT III 300 V, IEC 61010 LCD 2000 Tests AA Battery
RS Stock No. 711-9022
Mfr. Part No.LRCD220
BrandMegger
£784.50
Each
Units
RSCAL 2 Wire Combined Loop & RCD Tester 500V AC Selective, DC Selective Yes ±2% 10 mA, 30 mA, 100 mA, 300 mA, 500 mA, 1000mA Yes CAT III 300 V, IEC 61010 LCD 2000 Tests AA Battery
RS Stock No. 238-139
Mfr. Part No.LTW325
BrandMegger
£605.00
Each
Units
UKAS 2 Wire Combined Loop & RCD Tester 440V AC Selective - ±10% 4A Yes CAT IV 300 V, IEC 61010 LCD 2000 Tests AA Battery
RS Stock No. 198-457
Mfr. Part No.LTW325-EU-BS
BrandMegger
£535.00
Each
Units
- 2 Wire Combined Loop & RCD Tester 440V AC Selective - ±10% 4A Yes CAT IV 300 V, IEC 61010 LCD 2000 Tests AA Battery
RS Stock No. 237-877
Mfr. Part No.LTW325
BrandMegger
£584.50
Each
Units
RSCAL 2 Wire Combined Loop & RCD Tester 440V AC Selective - ±10% 4A Yes CAT IV 300 V, IEC 61010 LCD 2000 Tests AA Battery
RS Stock No. 712-5737
Mfr. Part No.RCDT310-EN-BS
BrandMegger
£440.00
Each
Units
- - RCD Tester - AC Selective, DC Selective - - 500mA - CAT III 300V LCD 2000 Tests AA Battery